Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:31:39 2012

Optimize a model with 163 rows, 400 columns and 400 nonzeros
Model has 324 quadratic constraints
Presolve time: 1.91s
Presolved: 163 rows, 400 columns, 400 nonzeros
Variable types: 324 continuous, 76 integer (76 binary)

Root relaxation: objective 0.000000e+00, 38 iterations, 0.00 seconds

    Nodes    |    Current Node    |     Objective Bounds      |     Work
 Expl Unexpl |  Obj  Depth IntInf | Incumbent    BestBd   Gap | It/Node Time

H    0     0                      89.0000000          -     -      -    1s
     0     0    0.00000    0    2   89.00000    0.00000   100%     -    1s
     0     0    0.00000    0   73   89.00000    0.00000   100%     -    1s
     0     0    0.00000    0   54   89.00000    0.00000   100%     -    1s
     0     2    0.00000    0   54   89.00000    0.00000   100%     -    1s
*   37    37              21      31.0000000    3.50000  88.7%  55.5    2s
*   40    36              23      30.0000000    3.50000  88.3%  52.1    2s
H  175   109                      28.0000000    6.88235  75.4%  37.8    2s
*  182   103              17      27.0000000    6.88235  74.5%  36.9    2s
H 1246   153                      26.0000000   18.94444  27.1%  31.2    3s

Cutting planes:

Explored 1849 nodes (56412 simplex iterations) in 3.46 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.600000000008e+01, best bound 2.600000000008e+01, gap 0.0%